JP4743158B2 - Waterproof ventilation case device - Google Patents

Waterproof ventilation case device Download PDF

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JP4743158B2
JP4743158B2 JP2007125663A JP2007125663A JP4743158B2 JP 4743158 B2 JP4743158 B2 JP 4743158B2 JP 2007125663 A JP2007125663 A JP 2007125663A JP 2007125663 A JP2007125663 A JP 2007125663A JP 4743158 B2 JP4743158 B2 JP 4743158B2
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case
hole
filter
ventilation
counterbore
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JP2008282981A (en
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学 野村
武利 佐藤
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Denso Corp
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Denso Corp
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Description

本発明は、組付時の内外気圧の平衡時間の短縮ができ且つ製品状態において外部からの水浸入を防止する防水通気ケース装置に関する。   The present invention relates to a waterproof ventilation case device that can shorten the equilibration time of internal and external air pressure during assembly and prevents water from entering from the outside in a product state.

従来、例えば防水構造で且つ通気可能なケース装置は、特許文献１に示されるケース装置がある。このものでは、ケース本体と蓋とを防水ゴムを介して接合している。そして、ケース本体には、防水の観点から１つの通気孔を形成し、この通気孔をケース内面側から防水性及び通気性を有するフィルタにより閉塞している。
特開平１１−８７９４４号公報 Conventionally, for example, there is a case device disclosed in Patent Document 1 as a case device having a waterproof structure and allowing ventilation. In this case, the case main body and the lid are joined via waterproof rubber. In the case body, one ventilation hole is formed from the viewpoint of waterproofing, and the ventilation hole is closed from the inner surface side of the case by a filter having waterproofness and air permeability.
JP-A-11-87944

ところで、防水構造で通気可能なケース装置としては、車両の燃料制御装置に用いられる防水通気ケース装置がある。このものでは、防水性を強化するためにケースと蓋とを熱硬化性樹脂からなる接着剤により接着するようにしている。この場合、車両搭載環境に対してケース内部の温度上昇が急激であり、つまり内圧が急に上昇する。ここで、前記従来のように通気孔部が１箇所であると、通気面積が少なくてこのフィルタの通気速度が追いつかず、蓋が持ち上がってしまうなどの問題がある。また、通気孔が１箇所であると、通常使用時に、ケース内部において放熱むらが発生しやすく内外気圧の平衡に時間がかかるという問題がある。さらにはフィルタがケース内側に接着されているため、ケース一体化前にフィルタのシール性のテストをしておかなければならず、また、ケース一体化後にはフィルタの保守点検ができないという問題があった。さらにフィルタがケース内側に接着されているため、ケース外面に通気孔部による凹所が形成されて、水が該凹所に溜まるおそれがあった。   By the way, as a case device that can be ventilated with a waterproof structure, there is a waterproof ventilation case device used in a fuel control device of a vehicle. In this device, the case and the lid are bonded with an adhesive made of a thermosetting resin in order to enhance waterproofness. In this case, the temperature rise inside the case is abrupt with respect to the vehicle mounting environment, that is, the internal pressure suddenly increases. Here, when there is only one ventilation hole as in the conventional case, there is a problem that the ventilation area is small, the ventilation speed of the filter cannot catch up, and the lid is lifted. Further, if there is only one vent hole, there is a problem in that uneven heat dissipation is likely to occur inside the case during normal use, and it takes time to balance the internal and external air pressure. Furthermore, since the filter is bonded to the inside of the case, the filter must be tested for sealability before the case is integrated, and the filter cannot be serviced after the case is integrated. It was. Further, since the filter is bonded to the inside of the case, a recess is formed in the outer surface of the case by a vent hole, and water may accumulate in the recess.

本発明は上記事情に鑑みてなされたものであり、その目的は、組付時の内圧放出特性を向上し、またフィルタの保守点検が可能となると共に、ケース外面に水が溜まることもない防水通気ケース装置を提供することにある。   The present invention has been made in view of the above circumstances, and an object of the present invention is to improve the internal pressure release characteristic at the time of assembly, to enable maintenance and inspection of the filter, and to prevent water from collecting on the outer surface of the case. The object is to provide a ventilation case device.

請求項１の発明によれば、ケースの少なくとも２箇所に通気孔部を形成し、防水性があって且つ通気性を有するフィルタをケース外面から該通気孔部を閉塞する形態に接着する構成としたから、ケースと蓋とを加熱型接着剤により接着するときに、内部温度が急激に上昇して内圧が急激に上昇しても、ケースに通気孔部があるから、該通気孔部から内圧を素早く逃がすことができ、蓋が持ち上がることがなく、また、通常使用時においてケース内部が温度上昇しても、ケースの少なくとも２箇所の通気孔部から均一に内外気圧の平衡ができ、またフィルタがケース外面に存在することで、該フィルタの保守点検が何時でも可能となると共に、水滴が滞留することもない。   According to the first aspect of the present invention, there is provided a structure in which a vent hole is formed in at least two places of the case, and a waterproof and breathable filter is adhered to a form in which the vent hole is closed from the outer surface of the case. Therefore, when the case and the lid are bonded with a heating type adhesive, even if the internal temperature suddenly rises and the internal pressure suddenly rises, the case has a vent hole portion. Can be quickly released, the lid does not lift, and even when the temperature inside the case rises during normal use, the internal and external air pressure can be evenly balanced from at least two vent holes in the case. Is present on the outer surface of the case, the filter can be maintained at any time, and water droplets do not stay.

この場合、前記ケースの一部を前記回路基板冷却用の金属製筐体により構成し、前記筐体に座ぐり孔及びねじ挿通孔を形成し、前記ケース本体の内部に備えたシールド板を前記座ぐり孔及びねじ挿通孔を通したねじにより前記筐体に固定し、前記座ぐり孔及びねじ挿通孔を前記通気孔部として兼用し、前記筐体外面に前記座ぐり孔を閉塞する前記フィルタを接着するようにしている。 In this case, a part of the case is constituted by a metal casing for cooling the circuit board, a counterbore hole and a screw insertion hole are formed in the casing, and a shield plate provided inside the case body is provided with the shield plate. The filter that is fixed to the housing with a screw that passes through a counterbore and a screw insertion hole, the counterbore hole and the screw insertion hole are also used as the vent hole portion, and closes the counterbore on the outer surface of the housing To be glued .

これによれば、該筐体シールドのためのシールド板を取り付けるための座ぐり孔及びねじ挿通孔を前記通気孔部として兼用できる。
また、前記通気孔部をケースの同じ面部の複数個所に形成し、該同じ面部に存する複数の通気孔部をひとつのフィルタにより閉塞するようにしても良い（請求項２の発明）。このようにすると、フィルタの取り付け工数を削減できる。 According to this, a counterbore hole and a screw insertion hole for attaching a shield plate for the housing shield can be used as the vent hole portion.
Further, the vent hole portion may be formed at a plurality of locations on the same surface portion of the case, and the plurality of vent hole portions existing on the same surface portion may be blocked by a single filter (invention of claim 2 ). If it does in this way, the man-hour of filter installation can be reduced.

また、前記通気孔部をケースの異なる面部に形成するようにしても良い（請求項３の発明）。このようにすると、製品の搭載制約がなくなる。 Moreover, you may make it form the said vent hole part in a different surface part of a case (invention of Claim 3 ). In this way, product mounting restrictions are eliminated.

以下、本発明の理解を助けるための第１の参考例について図１ないし図３を参照して説明する。図１には、車両の燃料制御装置に用いる防水通気ケース装置１を示している。ケース２はケース本体３と樹脂製の蓋４とを備えている。ケース本体３は、樹脂製の枠部５と金属製筐体である放熱板６とから構成されている。この放熱板６には多数の放熱フィン部６ａが形成されている。 A first reference example for helping understanding of the present invention will be described below with reference to FIGS. FIG. 1 shows a waterproof ventilation case device 1 used in a vehicle fuel control device. The case 2 includes a case main body 3 and a resin lid 4. The case main body 3 includes a resin frame portion 5 and a heat radiating plate 6 that is a metal casing. A large number of heat radiating fin portions 6 a are formed on the heat radiating plate 6.

前記枠部５の下端内周縁部はほぼＬ字状に凹むように形成されており、この凹部５ａに前記放熱板６の上面周縁の角部６ｂを嵌め、この部分を、シール部材を兼ねる熱硬化性樹脂からなる接着剤７（加熱型接着剤に相当）により加熱接着している。前記放熱板６はケース２の一部を構成している。   The inner peripheral edge of the lower end of the frame part 5 is formed so as to be recessed in an approximately L shape, and the corner part 6b of the upper peripheral edge of the heat radiating plate 6 is fitted into the concave part 5a, and this part is used as a heat which also serves as a sealing member. Heat bonding is performed with an adhesive 7 (corresponding to a heating type adhesive) made of a curable resin. The heat radiating plate 6 constitutes a part of the case 2.

前記放熱板６の上面（内面）には、燃料制御の回路を形成した回路基板８が熱伝達可能に接着されている。前記枠部５の側部には、外部接続可能なコネクタ一体（図示せず）の樹脂ケース９の全周を、内部に浸水しないように接着剤で固定している。この樹脂ケース９の図示しないターミナルと前記回路基板８の図示しないリードを接続し、図示しないポッティング剤を回路基板８上部に被覆して防湿構成としている。   A circuit board 8 on which a fuel control circuit is formed is bonded to the upper surface (inner surface) of the heat radiating plate 6 so that heat can be transferred. On the side of the frame 5, the entire circumference of the resin case 9 that is integrated with a connector (not shown) that can be connected externally is fixed with an adhesive so as not to be immersed inside. A terminal (not shown) of the resin case 9 and a lead (not shown) of the circuit board 8 are connected, and a potting agent (not shown) is coated on the circuit board 8 to form a moisture-proof structure.

また、前記枠部５の上端全周囲には溝状の凹部５ｂが形成されている。
前記蓋４には、例えば２箇所に円形の通気孔部１０、１１が形成されており、該蓋４の外面には、フィルタ１２、１３がそれぞれ通気孔部１０、１１を蓋４外面（ケース外面）から閉塞する形態に接着されている。このフィルタ１２、１３は、それぞれ防水性があって且つ通気性を有する材料（例えばゴアテックス（登録商標）など）から構成されている。また、この蓋４の下面周縁部は前記凹部５ｂと嵌り合う凸部４ａが形成されている。 Further, a groove-like recess 5 b is formed around the entire upper end of the frame portion 5.
The lid 4 is formed with, for example, circular vent holes 10 and 11 at two locations. Filters 12 and 13 are formed on the outer surface of the lid 4 so that the vent holes 10 and 11 are respectively attached to the outer surface of the lid 4 (case). It is bonded in a form that closes from the outer surface. The filters 12 and 13 are made of a waterproof material and a breathable material (for example, Gore-Tex (registered trademark)). Moreover, the convex part 4a which fits the said recessed part 5b is formed in the lower surface peripheral part of this lid | cover 4. As shown in FIG.

そして、該蓋４の前記凸部４ａが前記枠部上面の凹部５ｂに嵌め込まれ、且つこの凹部５ｂに熱硬化性樹脂の接着剤１４（加熱型接着剤に相当）を配置して、この嵌め込み部分を該接着剤１４により加熱接着している。   And the said convex part 4a of this cover 4 is engage | inserted by the recessed part 5b of the said frame part upper surface, and the adhesive agent 14 (equivalent to a heating type adhesive agent) of a thermosetting resin is arrange | positioned in this recessed part 5b, and this insertion is carried out. The parts are heat bonded by the adhesive 14.

この場合、ケース２内部が急激に温度上昇して内圧が上昇しても、その内圧をケース２の２つの通気孔部１０、１１から素早く逃がすことができ、蓋４が持ち上がることがない。なお、図１の完成状態において、フィルタ１２、１３部分のシールテストを行うことができる。この場合、一方のフィルタ部分から空気を入れて他のフィルタ部分からの空気漏れなどを検査することが可能となる。   In this case, even if the temperature inside the case 2 suddenly rises and the internal pressure rises, the internal pressure can be quickly released from the two vent holes 10 and 11 of the case 2 and the lid 4 does not rise. In addition, in the completed state of FIG. 1, the seal test of the filters 12 and 13 can be performed. In this case, it is possible to inspect air leakage from the other filter part by introducing air from one filter part.

このような参考例によれば、ケース２の２箇所に通気孔部１０、１１を形成し、防水性があって且つ通気性を有するフィルタ１２、１３を熱硬化性樹脂による接着工程前とするためケース２外面から該通気孔部１０、１１を閉塞する形態に接着又は溶着する構成としたから、ケース２と蓋４とを熱硬化性樹脂からなる接着剤７により接着するときに、内部温度が急激に上昇して内圧が急激に上昇しても、ケース２の２箇所に通気孔部１０、１１があって通気量を大きくできるから、該通気孔部１０、１１から内圧を素早く逃がすことができ、蓋４が持ち上がることがない。この場合、フィルタ１２、１３は最終的にケース２外面に接着されれば良いから、フィルタ１２、１３の接着時期が自由であり、ケース本体３に対する蓋４の接着前に、該フィルタ１２、１３は装着しておかなくても良く、この状態（通気孔部１０、１１開放状態）で上述の接着剤７の加熱接着を行うことができ、この結果、当該接着剤７の加熱接着時の内圧上昇がまったく無くなる。なおこの加熱接着後に前記フィルタ１２、１３を接着することになる。 According to such a reference example , the vent holes 10 and 11 are formed in two places of the case 2, and the waterproof and breathable filters 12 and 13 are set before the bonding step with the thermosetting resin. For this reason, since the vent hole portions 10 and 11 are bonded or welded from the outer surface of the case 2, the internal temperature when the case 2 and the lid 4 are bonded by the adhesive 7 made of a thermosetting resin. Even if the air pressure suddenly rises and the internal pressure suddenly rises, the vent holes 10 and 11 are provided at two locations of the case 2 and the air flow rate can be increased, so that the internal pressure can be quickly released from the air hole parts 10 and 11. And the lid 4 does not lift. In this case, since the filters 12 and 13 are finally bonded to the outer surface of the case 2, the bonding time of the filters 12 and 13 is arbitrary, and the filters 12 and 13 are bonded before the lid 4 is bonded to the case body 3. May not be attached, and in this state (the vent hole portions 10 and 11 are open), the above-described adhesive 7 can be heat-bonded. As a result, the internal pressure at the time of heat-bonding the adhesive 7 There will be no rise. Note that the filters 12 and 13 are bonded after the heat bonding.

また、通常使用時（燃料制御時）においてケース２内部が温度上昇しても、ケース２の少なくとも２箇所の通気孔部１０、１１から均一に内外気圧の平衡ができ、またフィルタ１２、１３がケース２外面に存在することで、該フィルタ１２、１３の保守点検が何時でも可能となると共に、水滴が滞留することもない。   Further, even when the temperature inside the case 2 rises during normal use (during fuel control), the internal and external air pressure can be evenly balanced from at least two vent holes 10 and 11 of the case 2, and the filters 12 and 13 By being present on the outer surface of the case 2, the maintenance of the filters 12 and 13 can be performed at any time, and water drops do not stay.

図４及び図５は本発明の一実施例を示しており、この実施例においては、次の点が第１の参考例と異なる。前記放熱板６の例えば１箇所に座ぐり孔２１及びねじ挿通孔２２を形成している。前記ケース本体３の内部にシールド板２３を備えている。このシールド板２３は、回路形成をなすアース端子に接続されたターミナルから構成されており、当該シールド板２３には、前記ねじ挿通孔２２に対応して、バーリング加工による筒部２３ａが形成されており、この筒部２３ａ内面に雌ねじ部（図示せず）が形成されている。 4 and 5 show an embodiment of the present invention. In this embodiment, the following points are different from the first reference example . A counterbore 21 and a screw insertion hole 22 are formed, for example, at one location of the heat radiating plate 6. A shield plate 23 is provided inside the case body 3. The shield plate 23 includes a terminal connected to a ground terminal that forms a circuit. The shield plate 23 has a cylindrical portion 23a formed by burring corresponding to the screw insertion hole 22. An internal thread portion (not shown) is formed on the inner surface of the cylindrical portion 23a.

このシールド板２３は、前記座ぐり孔２１及びねじ挿通孔２２を通したねじ２４を前記筒部２３ａの雌ねじ部にねじ込むにことより前記放熱板６に固定されている。この場合、前記座ぐり孔２１及びねじ挿通孔２２を通気孔部として兼用している。なお、蓋４には１つの通気孔部１０及び１つのフィルタ１２が備えられている。従って、通気孔部としては２つ設けられていることになる。   The shield plate 23 is fixed to the heat radiating plate 6 by screwing a screw 24 through the counterbore 21 and the screw insertion hole 22 into the female screw portion of the cylindrical portion 23a. In this case, the counterbore hole 21 and the screw insertion hole 22 are also used as a vent hole portion. The lid 4 is provided with one vent hole 10 and one filter 12. Therefore, two vent holes are provided.

そして、前記放熱板６外面には前記座ぐり孔２１を閉塞するフィルタ２５を接着している。この実施例によれば、回路基板８冷却用の放熱板６により、該放熱板６シールドのためのシールド板２３を取り付けるための座ぐり孔２１及びねじ挿通孔２２を通気孔部として兼用できる。 And the filter 25 which obstruct | occludes the counterbore hole 21 is adhere | attached on the said heat sink 6 outer surface. According to the actual施例this, the heat radiating plate 6 of the circuit board 8 for cooling, also serves as a counter boring 21 and the screw insertion holes 22 for attaching the shield plate 23 for dissipating heat plate 6 shields the vent hole it can.

図６は第２の参考例を示しており、次の点が第１の参考例と異なる。すなわち、この第２の参考例においては、通気孔部３１、３２をケース２の同じ面部である例えば蓋４の複数個所に形成し、該同じ面部に存する複数の通気孔部３１、３２をひとつのフィルタ３３により各通気孔部３１、３２外周での接着又は溶着で閉塞するようにしている。この第２の参考例によれば、前記第１の参考例及び一実施例と同様に複数のフィルタを構成するのと同様の効果があり且つフィルタ３３の取り付け工数を削減できる。 FIG. 6 shows a second reference example, which differs from the first reference example in the following points. That is, in the second reference example , the vent holes 31 and 32 are formed at a plurality of locations on the same surface portion of the case 2, for example, the lid 4, and the plurality of vent holes 31 and 32 existing on the same surface portion are provided as one. The filter 33 is closed by adhesion or welding at the outer periphery of each of the vent holes 31 and 32. According to the second reference example , similar to the first reference example and one embodiment, there are the same effects as configuring a plurality of filters, and the number of steps for attaching the filter 33 can be reduced.

この場合、第３の参考例として示す図７のように、通気孔部３４、３５をケース２の異なる面部に形成し、各通気孔部３４、３５に夫々フィルタ３６、３７を設ける構成としてもよく、これによれば、製品の搭載方向制約がなくなる。 In this case, as shown in FIG. 7 as the third reference example , the vent holes 34 and 35 may be formed on different surface portions of the case 2 and the filters 36 and 37 may be provided in the vent holes 34 and 35, respectively. Well, according to this, there is no restriction on the mounting direction of the product.

なお、本発明は、上記した実施例に限定されず、要旨を逸脱しない範囲で、適宜変更して実施することができる。例えば、燃料制御装置以外にも、防水と通気とが要求されるケース装置全般に広く適用することができる。また、フィルタとしては、防水性及び通気性があるものであれば良い。さらに、加熱型接着剤としては種々考えられる。 The present invention is not limited to the real施例described above, without departing from the spirit, it can be carried out by appropriately changing. For example, in addition to the fuel control device, the present invention can be widely applied to all case devices that require waterproofing and ventilation. Moreover, as a filter, what is necessary is just waterproof and breathable. Furthermore, various types of heating adhesives are possible.

第１の参考例を示す防水通気ケース装置の縦断側面図Longitudinal side view of waterproof ventilation case device showing first reference example 蓋装着前の状態で防水通気ケース装置の縦断側面図Vertical side view of the waterproof ventilation case device before the lid is attached 蓋の平面図Top view of the lid 本発明の一実施例を示す図１相当図FIG. 1 equivalent view showing an embodiment of the present invention ねじ取付部分の縦断側面図Vertical side view of screw mounting part 第２の参考例を示す図１相当図FIG. 1 equivalent diagram showing a second reference example 第３の参考例を示す図１相当図FIG. 1 equivalent diagram showing a third reference example

符号の説明Explanation of symbols

図面中、１は防水通気ケース装置、２はケース、３はケース本体、４は蓋、５は枠部、６は放熱板（筐体）、７は接着剤（加熱型接着剤）、８は回路基板、１０、１１は通気孔部、１２、１３はフィルタ、１４は接着剤（加熱型接着剤）、２１は座ぐり孔、２２はねじ挿通孔、２３はシールド板、２４はねじ、３１、３２は通気孔部、３３はフィルタ、３４、３５は通気孔部を示す。   In the drawings, 1 is a waterproof ventilation case device, 2 is a case, 3 is a case body, 4 is a lid, 5 is a frame part, 6 is a heat sink (housing), 7 is an adhesive (heating type adhesive), 8 is Circuit boards 10 and 11 are vent holes, 12 and 13 are filters, 14 is an adhesive (heating type adhesive), 21 is a counterbore, 22 is a screw insertion hole, 23 is a shield plate, 24 is a screw, 31 , 32 are vent holes, 33 is a filter, and 34, 35 are vent holes.

Claims (3)

ケース本体と蓋とを加熱型接着材により接着して構成され内部に回路基板を収容したケースと、
このケースの少なくとも２箇所に形成された通気孔部と、
この通気孔部をケース外面から閉塞する形態に接着され防水性があって且つ通気性を有するフィルタと
を備え、
前記ケースの一部が前記回路基板冷却用の金属製筐体により構成され、
前記ケース本体の内部に前記筐体をシールドするシールド板を備え、
前記筐体に座ぐり孔及びねじ挿通孔を形成し、
前記シールド板を前記筐体に座ぐり孔及びねじ挿通孔を通したねじにより固定し、
前記座ぐり孔及びねじ挿通孔は前記通気孔部を兼用し、
前記筐体外面に前記座ぐり孔を閉塞する前記フィルタを接着したことを特徴とする防水通気ケース装置。 A case configured by adhering a case main body and a lid with a heating type adhesive and containing a circuit board therein;
A vent hole formed in at least two places of the case;
A filter that is bonded in a form that closes the vent from the outer surface of the case and is waterproof and breathable.
A part of the case is constituted by a metal casing for cooling the circuit board,
Provided with a shield plate that shields the housing inside the case body,
A counterbore and a screw insertion hole are formed in the housing,
The shield plate is fixed to the housing with a screw through a counterbore and a screw insertion hole,
The counterbore hole and the screw insertion hole also serve as the vent hole part,
A waterproof ventilation case device, wherein the filter that closes the counterbore is bonded to the outer surface of the housing . 前記通気孔部はケースの同じ面部の複数個所に形成され、該同じ面部に存する複数の通気孔部はひとつのフィルタにより閉塞されていることを特徴とする請求項１に記載の防水通気ケース装置。 The waterproof ventilation case device according to claim 1, wherein the ventilation hole portion is formed at a plurality of locations on the same surface portion of the case, and the plurality of ventilation hole portions existing on the same surface portion are closed by a single filter. . 前記通気孔部はケースの異なる面部に形成されていることを特徴とする請求項１又は２に記載の防水通気ケース装置。 The waterproof ventilation case device according to claim 1, wherein the ventilation hole portion is formed on a different surface portion of the case.
JP2007125663A 2007-05-10 2007-05-10 Waterproof ventilation case device Expired - Fee Related JP4743158B2 (en)

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JP5587849B2 (en) * 2011-10-12 2014-09-10 本田技研工業株式会社 Enclosure
JP6176310B2 (en) * 2015-11-02 2017-08-09 住友電装株式会社 Equipment case closing structure
JP6908263B2 (en) * 2017-03-30 2021-07-21 Ｎｅｃネットワーク・センサ株式会社 Housing structure
JP7090426B2 (en) 2018-01-24 2022-06-24 株式会社トランストロン Electronic device
CN111312300B (en) * 2020-02-13 2022-12-20 宜鼎国际股份有限公司 Data storage device with thermal protection
RU200585U1 (en) * 2020-06-11 2020-10-30 Федеральное государственное унитарное предприятие "Центральный ордена Трудового Красного Знамени научно-исследовательский автомобильный и автомоторный институт "НАМИ" (ФГУП "НАМИ") ELECTRONIC CONTROL UNIT HOUSING

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